Giant Septic System P420 User Manual

Triplex Ceramic  
Plunger Pump  
Operating Instructions/  
Repair and Service Manual  
P400 Series -  
22 and 25mm Versions  
For Models:  
P420  
P420-0011  
P420-0021  
P422  
P423  
P425  
Contents:  
Installation Instructions:  
page 2  
Pump Specifications (except P425):  
Exploded View:  
pages 3-5  
page 6  
Parts List/Kits:  
page 7  
Pump Specifications (P425):  
Repair Instructions/Torque Specs.:  
Trouble Shooting Chart:  
Recommended Spare Parts List:  
Dimensions:  
page 8  
pages 9-10  
page 11  
page 11  
back page  
back page  
Warranty Information:  
Updated 11/07  
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Specifications  
ModelS P420A, P420A-0011, P420A-0021  
U.S.  
(Metric)  
Volume................................................................ Up to 12.9 GPM ................. (48.8 LPM)  
Discharge Pressure.............................................. Up to 2175 PSI ................... (150 bar)  
Inlet Pressure....................................................... -4.35 to 145 PSI .................. (-.3 to 10 bar)  
Stroke .................................................................. 0.945” ................................. (24mm)  
RPM .................................................................................................................. Up to 1450 RPM  
Plunger Diameter ................................................ 0.98” ................................... (25mm)  
Temperature of Pumped Fluids........................... Up to 160 oF........................ (71 oC)  
Inlet Ports .......................................................................................................... (2) 1" NPT  
Discharge Ports ................................................................................................. (2) 3/4" NPT  
Shaft Rotation ..................................................... Top of pulley towards fluid end  
Crankshaft Diameter ........................................... 1.1” ..................................... (28mm)  
Key Width ........................................................... 0.315” ................................. (8mm)  
Shaft Mounting ................................................................................................. Either side1  
Weight................................................................. 36 lbs. 11oz......................... (16.6 kg)  
Crankcase Capacity............................................. 27 fl.oz. ............................... (0.8 liters)  
Volumetric Efficiency @ 1450 ......................................................................... (0.95)  
Mechanical Efficiency @ 1450......................................................................... (0.86)  
Consult the factory for special requirements that must be met if the pump is  
to operate beyond one or more of the limits specified above.  
NOTES:  
In order to drive the pump from the side opposite the present shaft  
extension, simply remove the valve casing from the crankcase and  
rotate the pumps 180 degrees to the desired position. Be certain to  
rotate the seal case (item #20) as well, so that the weep holes are  
down at the six o'clock position. Exchange the oil fill and the oil  
drain plugs, also. Refer to the repair instructions as necessary for  
the proper assembly sequence.  
HORSEPOWER RATINGS:  
The rating shown are the power  
requirements for the pump. Gas  
engine power outputs must be  
approximately twice the pump  
power requirements shown above.  
P420 HORSEPOWER REQUIREMENTS  
RPM GPM 1000 PSI 1500 PSI 1700 PSI 2175 PSI  
785  
900  
1010 9.0  
1120 9.9  
1240 11.0  
1450 12.9  
7.0  
8.0  
4.8  
5.5  
6.2  
6.8  
7.6  
9.0  
7.2  
8.3  
9.3  
10.2  
11.4  
13.3  
8.2  
9.3  
10.5  
11.7  
12.8  
15.1  
10.4  
12.0  
13.4  
14.9  
16.5  
19.3  
We recommend a 1.15 service factor  
be specified when selecting an  
electric motor as the power source.  
To compute specific pump horse  
power requirements, use the  
following formula:  
SPECIAL NOTE:  
The theoretical gallons per revolution  
(gal/rev) is 0.0089.  
To find specific outputs at various RPM,  
use the formula: GPM = 0.0089 x RPM  
HP = (GPM X PSI) / 1450  
3
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Specifications  
Model P422  
U.S.  
(Metric)  
Volume................................................................ Up to 10.7 GPM ................. (37.7 LPM)  
Discharge Pressure Continuous .......................... Up to 2600 PSI ................... (180 bar)  
Discharge Pressure Intermittent .......................... Up to 3000 PSI ................... (206.8 bar)  
Inlet Pressure....................................................... -4.35 to 145 PSI .................. (-.3 to 10 bar)  
Stroke .................................................................. 0.94” ................................... (24mm)  
RPM .................................................................................................................. Up to 1450 RPM  
Plunger Diameter ................................................ 0.87” ................................... (22mm)  
Temperature of Pumped Fluids........................... Up to 160 oF........................ (71 oC)  
Inlet Ports .......................................................................................................... (2) 1" NPT  
Discharge Ports ................................................................................................. (2) 3/4" NPT  
Shaft Rotation ..................................................... Top of pulley towards manifold  
Crankshaft Diameter ........................................... 1.102” ................................. (28mm)  
Key Width ........................................................... 315” .................................... (8mm)  
Shaft Mounting ................................................................................................. Either side1  
Weight................................................................. 36 lbs. 11oz......................... (16.64 kg)  
CrankcaseCapacity.............................................. 27 fl.oz. ............................... (0.8 liters)  
Volumetric Efficiency @ 1450 ......................................................................... (0.95)  
Mechanical Efficiency @ 1450......................................................................... (0.83)  
Consult the factory for special requirements that must be met if the pump is  
to operate beyond one or more of the limits specified above.  
NOTES:  
In order to drive the pump from the side opposite the present shaft  
extension, simply remove the valve casing from the crankcase and  
rotate the pumps 180 degrees to the desired position. Be certain to  
rotate the seal case (item #20) as well, so that the weep holes are  
down at the six o'clock position. Exchange the oil fill and the oil  
drain plugs, also. Refer to the repair instructions as necessary for  
the proper assembly sequence.  
HORSEPOWER RATINGS:  
The rating shown are the power  
P422 HORSEPOWER REQUIREMENTS  
RPM GPM 1000 PSI 1500 PSI 2610 PSI 3000 PSI*  
requirements for the pump. Gas  
engine power outputs must be  
approximately twice the pump  
power requirements shown above.  
900 6.2  
1050 7.2  
1160 8.0  
1300 9.0  
1450 10.0  
4.3  
5.0  
5.5  
6.2  
6.9  
6.4  
7.5  
8.3  
9.3  
10.4  
11.1  
13.0  
14.3  
16.0  
17.9  
12.8  
14.9  
16.4  
18.4  
20.6  
We recommend a 1.15 service factor  
be specified when selecting an  
electric motor as the power source.  
To compute specific pump horse  
power requirements, use the  
following formula:  
*Intermitent duty only*  
SPECIAL NOTE:  
The theoretical gallons per revolution  
(gal/rev) is 0.0069.  
To find specific outputs at various RPM,  
use the formula: GPM = 0.0069 x RPM  
HP = (GPM X PSI) / 1450  
4
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Specifications  
Model P423  
U.S.  
(Metric)  
Volume................................................................ Up to 8.3 GPM ................... (31.4 LPM)  
Discharge Pressure.............................................. Up to 2900 PSI ................... (200 bar)  
Inlet Pressure....................................................... -4.35 to 145 PSI .................. (-.3 to 10 bar)  
Stroke .................................................................. 0.79” ................................... (20mm)  
RPM .................................................................................................................. Up to 1450 RPM  
Plunger Diameter ................................................ 0.87” ................................... (22mm)  
Temperature of Pumped Fluids........................... Up to 160 oF........................ (71 oC)  
Inlet Ports .......................................................................................................... (2) 1" NPT  
Discharge Ports ................................................................................................. (2) 3/4" NPT  
Shaft Rotation ..................................................... Top of pulley towards manifold  
Crankshaft Diameter ........................................... 1.102” ................................. (28mm)  
Key Width ........................................................... 315” .................................... (8mm)  
Shaft Mounting ................................................................................................. Either side1  
Weight................................................................. 36 lbs. 11oz......................... (16.64 kg)  
CrankcaseCapacity.............................................. 27 fl.oz. ............................... (0.8 liters)  
Volumetric Efficiency @ 1450 ......................................................................... (0.95)  
Mechanical Efficiency @ 1450......................................................................... (0.83)  
Consult the factory for special requirements that must be met if the pump is  
to operate beyond one or more of the limits specified above.  
NOTES:  
In order to drive the pump from the side opposite the present shaft  
extension, simply remove the valve casing from the crankcase and  
rotate the pumps 180 degrees to the desired position. Be certain to  
rotate the seal case (item #20) as well, so that the weep holes are  
down at the six o'clock position. Exchange the oil fill and the oil  
drain plugs, also. Refer to the repair instructions as necessary for  
the proper assembly sequence.  
HORSEPOWER RATINGS:  
The rating shown are the power  
requirements for the pump. Gas  
engine power outputs must be  
approximately twice the pump  
power requirements shown above.  
P423HORSEPOWER REQUIREMENTS  
RPM GPM 1000 PSI 1500 PSI 2000 PSI 2900 PSI  
900 5.1  
1050 6.0  
1160 6.6  
1300 7.4  
1450 8.3  
3.6  
4.1  
4.6  
5.1  
5.7  
5.3  
6.2  
6.9  
7.7  
8.6  
7.1  
8.2  
9.1  
10.2  
11.4  
10.3  
12.0  
13.3  
14.9  
16.6  
We recommend a 1.15 service factor  
be specified when selecting an  
electric motor as the power source.  
To compute specific pump horse  
power requirements, use the  
following formula:  
SPECIAL NOTE:  
The theoretical gallons per revolution  
(gal/rev) is 0.00572.  
To find specific outputs at various RPM,  
use the formula: GPM = 0.00572 x RPM  
HP = (GPM X PSI) / 1450  
5
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EXPLODED VIEW - P420/P420-0011/P420-0021/ P422/ P423 AND P425 PUMPS  
6
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P420/P420-0011/P420-0021/P422/P423 and P425 SPARE PARTS LIST  
A = P420 B=P422  
G=P423  
H=P425  
J=P420-0011 K=P420-0021  
ITEM  
1
2
3
3A  
4
PART  
08377  
08378  
06479  
07186  
08380  
07109  
07182  
08092  
01010  
01011-0400  
05290  
05291  
05292  
05293  
01016  
07114  
07459  
05350  
08475  
08482  
08091  
08390  
05349  
05348  
05351  
DESCRIPTION  
Crankcase  
Oil Fill Plug with Gasket  
Crankcase cover  
Oil Sight Glass w/ Gasket  
O-Ring  
Oil Drain Plug  
Gasket for Oil Drain Plug  
Plug with Gasket  
Screw  
QTY.  
ITEM PART DESCRIPTION  
QTY.  
1
16H  
17  
06431  
06790  
Oil Scraper  
Crosshead Pin  
3
3
3
3
3
3
3
3
3
3
3
3
3
1
1
1
1
1
1
1
4
4
1
1
1
1
2
8
1
2
1
1
1
3
6
6
19  
08366  
Oil Seal  
20  
20  
20A  
21  
21  
22  
22  
23  
23  
06771  
06770  
06772  
07266  
07266-0001  
08059  
08059-0001  
12254  
12254-0010  
12254-0020  
06249  
Seal Case (A, H, J & K)  
Seal Case (B and G)  
Gear Seal Adapter  
5
5A  
5B  
6
6A  
7
O-Ring (A, B, G, & H)  
O-Ring, Viton (J & K)  
O-Ring (A, B, G, & H)  
O-Ring, Viton (J & K)  
V-Sleeve, 25mm (A and H)  
V-Sleeve, 25mm, Viton, (J)  
V-Sleeve, 25mm, Teflon, (K)  
V-Sleeve with Support Ring,  
22mm (B and G)  
Spring Washer  
Bearing Cover Open  
Bearing Cover Closed  
Shim  
Shim (May not be present)  
O-Ring  
Screw with Washer  
Radial Shaft Seal  
Taper Roller Bearing  
Crankshaft (A, B, J & K)  
Crankshaft (G and H)  
Fitting Key  
Connecting Rod Assembly  
Connecting Rod Screw  
Adapter Sleeve  
Plunger Assy., 25mm, (A, H, and I)  
For items 16A-16H  
Plunger Assy., 25mm, (J & K)  
For items 16A-16H  
Plunger Assy., 22mm, (B & G)  
For items 16A-16H  
Plunger Base  
Plunger Pipe, 25mm (A, H, J & K)  
Plunger Pipe, 22mm (B and G)  
Centering Sleeve  
Tensioning Screw  
O-Ring  
8
8A  
8B  
9
23  
23  
3
3
3
3
3
3
6
3
3
3
1
1
6
6
6
6
6
6
6
6
6
6
6
8
10  
11  
12  
13  
13  
14  
15  
15A  
15B  
16  
23A  
23B  
23B  
23B  
23B  
24  
24  
25  
25  
26  
06251  
12255  
12255-0010  
12255-0020  
13390  
08376  
06252  
08394  
06254  
08395  
06255  
08408  
08408-0001  
08370  
Spacer Ring (B and G)  
Weep Seal (A and H)  
Weep Seal, Viton (J)  
Weep Seal, Teflon (K)  
Weep Seal (B and G)  
Pressure Ring (A, H, J & K)  
Pressure Ring (B and G)  
Weep Return Ring (A, H, J & K)  
Weep Return Ring (B and G)  
Manifold (A, H, J & K)  
Manifold (B and G)  
Valve Assembly (A, B, G, H)  
Valve Assembly (J & K)  
Valve Seat  
3
3
26  
16  
16  
05351-0001  
05353  
27A  
27A  
27  
3
3
3
3
3
3
3
3
3
28  
29  
30  
31  
31  
32  
06791-0100  
06377-0100  
08372  
07212  
07212-0001  
08373  
Valve Plate  
Valve Spring  
Valve Spring Retainer  
O-Ring (A, B, G, H)  
O-Ring, Viton (J & K)  
Plug  
16A  
16B  
16B  
16C  
16D  
16E  
16F  
16G  
05352  
08398  
06247  
07256  
08399  
07023  
07203  
07258  
33  
33  
34  
07214  
07214-0001  
08396  
O-Ring (A, B, G, H)  
O-Ring, Viton (J & K)  
Cap Screw  
Backup Ring  
Copper Washer  
P420/P420-0011/P420-0021/P422/P423 and P425 REPAIR KITS  
Plunger Packing Kits  
P420, P425 - # 09140  
Plunger Packing Kit  
P422, P423  
# 09295  
Item  
21  
22  
23  
23B  
24  
Part #  
07266  
08059  
12254  
12255  
08376  
Description  
O-Ring  
O-Ring  
V-Sleeve  
Weep Seal  
Pressure Ring  
Qty  
3
3
3
3
Item  
21  
22  
23  
23B  
24  
Part #  
07266  
08059  
06249  
13390  
06252  
Description  
O-Ring  
O-Ring  
V-Sleeve with Support Ring  
Weep Seal  
Pressure Ring  
Qty  
3
3
3
3
6
3
P420-0011 - # 09140-0011  
Valve Assembly Kits  
P420, P422, P423, P425 - # 09143  
tem  
Part #  
Description  
Qty  
3
3
3
3
21  
22  
23  
23B  
24  
07266-0001 O-Ring, Viton  
08059-0001 O-Ring, Viton  
12254-0010 V-Sleeve, Viton  
12255-0010 Weep Seal, Viton  
Item  
27A  
33  
Part #  
08408  
07214  
Description  
Valve Assembly, Complete  
O-Ring  
Qty.  
6
6
P420, P422, P423, P425 - # 09143-0001  
08376  
Pressure Ring  
6
Item  
27A  
33  
Part #  
Description  
Qty.  
6
6
P420-0021 - # 09140-0021  
08408-0001 Valve Assembly, Complete  
07214-0001 O-Ring  
tem  
Part #  
Description  
Qty  
3
3
3
3
21  
22  
23  
23B  
24  
07266-0001 O-Ring, Viton  
08059-0001 O-Ring, Viton  
12254-0020 V-Sleeve, Teflon  
12255-0020 Weep Seal, Teflon  
Oil Seal Kit  
P400 Series - # 09306  
Item  
Part #  
Description  
Qty  
3
08376  
Pressure Ring  
6
19  
08366  
Oil Seal  
7
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Specifications  
Model P425  
U.S.  
(Metric)  
Volume................................................................ Up to 10.7 GPM ................. (40.6 LPM)  
Discharge Pressure.............................................. Up to 2465 PSI ................... (170 bar)  
Inlet Pressure....................................................... -4.35 to 145 PSI .................. (-.3 to 10 bar)  
Stroke .................................................................. 0.787” ................................. (20mm)  
RPM .................................................................................................................. Up to 1450 RPM  
Plunger Diameter ................................................ 0.98” ................................... (25mm)  
Temperature of Pumped Fluids........................... Up to 160 oF........................ (71 oC)  
Inlet Ports .......................................................................................................... (2) 1" NPT  
Discharge Ports ................................................................................................. (2) 3/4" NPT  
Shaft Rotation ..................................................... Top of pulley towards manifold  
Crankshaft Diameter ........................................... 1.102” ................................. (28mm)  
Key Width ........................................................... 315” .................................... (8mm)  
Shaft Mounting ................................................................................................. Either side1  
Weight................................................................. 36 lbs. 11oz......................... (16.64 kg)  
CrankcaseCapacity.............................................. 27 fl.oz. ............................... (0.8 liters)  
Volumetric Efficiency @ 1450 ......................................................................... (0.95)  
Mechanical Efficiency @ 1450......................................................................... (0.83)  
Consult the factory for special requirements that must be met if the pump is  
to operate beyond one or more of the limits specified above.  
NOTES:  
In order to drive the pump from the side opposite the present shaft  
extension, simply remove the valve casing from the crankcase and  
rotate the pumps 180 degrees to the desired position. Be certain to  
rotate the seal case (item #20) as well, so that the weep holes are  
down at the six o'clock position. Exchange the oil fill and the oil  
drain plugs, also. Refer to the repair instructions as necessary for  
the proper assembly sequence.  
HORSEPOWER RATINGS:  
The rating shown are the power  
requirements for the pump. Gas  
engine power outputs must be  
approximately twice the pump  
power requirements shown above.  
P425 HORSEPOWER REQUIREMENTS  
RPM GPM 1000 PSI 1500 PSI 2000 PSI 2465 PSI  
750 5.6  
900 6.7  
1010 7.5  
1120 8.3  
1240 9.2  
1450 10.7  
3.8  
4.6  
5.2  
5.7  
6.3  
7.4  
5.7  
6.9  
7.7  
8.6  
9.5  
7.6  
9.1  
10.2  
11.4  
12.6  
14.7  
9.4  
11.3  
12.7  
14.1  
15.6  
18.2  
11.1  
We recommend a 1.15 service factor  
be specified when selecting an  
electric motor as the power source.  
To compute specific pump horse  
power requirements, use the  
following formula:  
SPECIAL NOTE:  
The theoretical gallons per revolution  
(gal/rev) is 0.0074.  
To find specific outputs at various RPM,  
use the formula: GPM = 0.0074 x RPM  
HP = (GPM X PSI) / 1450  
8
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Repair Instructions P420/P420-0011/P420-0021/P422/P423 and P425  
Note: Always take time to lubricate all metal and nonmetal parts with a light film of oil before reassembly. This step will ensure  
proper fit, at the same time protecting the pump nonmetal parts (i.e., the elastomers) from cutting and scoring.  
1) With a socket wrench,  
remove the three discharge  
valve plugs and three inlet  
valve plugs (32). Inspect  
the o-ring (33) for wear and  
replace if damaged.  
3) By inserting a small screw  
driver between the valve seat  
(27) and the valve spring re-  
tainer (30), the valve assem-  
bly can be separated.  
2) Using needle nose pliers,  
remove the inlet and dis-  
charge valve assemblies  
(27A). Note: It may become  
neccesary to remove the  
valve seat (27) from the  
valve casing using  
slidehammer.  
a
5) Use a 8mm allen wrench to  
remove the 8 socket head  
cap screws (34). Carefully  
slide the valve casing (26)  
out over the plungers.  
4) Remove the o-ring (31).  
Inspect all parts for wear and  
replace as necessary. Apply  
one drop of loctite 243 to the  
valve plugs (32) and tighten  
to 107 ft.-lbs. (145 NM).  
6) Remove seal adaptors (20)  
and weep return rings (25)  
from the valve casing.  
IMPORTANT! The grooved  
seal (23) on the high-pressure  
side is to be fitted carefully  
into the valve casing (26)  
using a screwdriver. Under no  
circumstances must the seal  
surface in the valve casing or  
the seal lip be damaged.  
7) Remove the pressure rings  
(24) and v-sleeves (23 -  
Note: P422 & P423 pumps  
have a support ring) from  
the valve casing (26).  
8) Remove the weep grooved  
seal (23 or 23B) together  
with pressure ring (24 _  
P420 and P425 only) out  
of the seal adaptor (20).  
Check O-rings (21).  
9
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Repair Instructions P420/P420-0011/P420-0021/P422/P423 and P425  
IMPORTANT! Care must be  
taken that glue does not get  
between the plunger pipe (16B)  
and centring sleeve (16C). The  
plunger pipe should not be  
strained by eccentric tightening  
of the tension screw or through  
damage to front surface of  
plunger, otherwise it is liable to  
fracture.  
10) If the plunger pipe (16B), or  
oil seal (19) is worn, remove  
tension screw (16D) and re-  
move along with plunger  
pipe (16B). Check and clean  
plunger surface (16A), check  
oil scraper (16H). Remove  
the gear seal adapter (20A)  
and, if necessary, replace oil  
seals with seal lips facing  
crankcase (1).Cover thread  
of tension screw (16D) with  
a thin film of Loctite and  
tighten carefully to 22 ft.-lbs.  
(30NM).  
9) Check surfaces of plunger  
(16). Damaged surfaces  
cause accelerated seal wear.  
Deposits of all kinds must be  
removed from the plungers.  
IMPORTANT! Plunger  
surfaces are not to be  
damaged. If there are lime  
deposits in the pump, care  
must be taken that the drip-  
return bore in parts (25)  
and (26) ensure trouble-free  
drip-return.  
11) After installation of high  
pressure seals (23), place seal  
adaptor (20) with weep seals  
& pressure ring installed,  
weep return ring (25) and high  
pressure weep return ring (24)  
over plungers. Slide valve  
casing over plungers and seat  
firmly. Replace the 8 socket  
head cap screws (34) and  
tighten to 30 ft.-lbs.(47 NM)  
in a crossing pattern  
4
1
6
8
2
3
7
5
(as shown below).  
Torque Specifications P420/P420-0011/P420-0021/P422/P423 and P425  
Position  
15A  
16D  
32  
Item#  
07311  
08399  
Description  
U.S  
Metric  
11 NM  
30 NM  
145 NM  
40 NM  
Screw with Washer  
Tensioning Screw  
Plug (P420, P422, P423, P425)  
Cap Screw  
97 in.-lbs.  
22 ft.-lbs.  
107 ft.-lbs.  
30 ft.-lbs.  
08373  
34  
08396/08484  
Contact Giant Industries for service school information. Phone: (419) 531-4600  
10  
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PUMP SYSTEM MALFUNCTION  
MALFUNCTION  
CAUSE  
REMEDY  
The Pressure and/  
or the Delivery  
Drops  
Worn packing seals  
Broken valve spring  
Belt slippage  
Worn or Damaged nozzle  
Fouled discharge valve  
Fouled inlet strainer  
Worn or Damaged hose  
Worn or Plugged relief valve on pump  
Cavitation  
Replace packing seals  
Replace spring  
Tighten or Replace belt  
Replace nozzle  
Clean valve assembly  
Clean strainer  
Repair/Replace hose  
Clean, Reset, and Replace worn parts  
Check suction lines on inlet of  
pump for restrictions  
Unloader  
Check for proper operation  
Water in crankcase  
Noisy Operation  
High humidity  
Worn seals  
Reduce oil change interval  
Replace seals  
Worn bearings  
oil with  
Cavitation  
Replace bearings, Refill crankcase  
recommended lubricant  
Check inlet lines for restrictions  
and/or proper sizing  
Rough/Pulsating  
Operation with  
Pressure Drop  
Worn packing  
Inlet restriction  
Replace packing  
Check system for stoppage, air  
leaks, correctly sized inlet  
plumbing to pump  
Accumulator pressure  
Unloader  
Cavitation  
Recharge/Replace accumulator  
Check for proper operation  
Check inlet lines for restrictions  
and/or proper size  
Pump Pressure as  
Rated, Pressure  
Drop at Gun  
Restricted discharge plumbing  
Re-size discharge plumbing to Flow  
Rate of Pump  
Excessive  
Leakage  
Worn plungers  
Replace plungers  
Worn packing/seals  
Excessive vacuum  
Cracked plungers  
Inlet pressure too high  
Adjust or Replace packing seals  
Reduce suction vacuum  
Replace plungers  
Reduce inlet pressure  
High Crankcase  
Temperature  
Wrong Grade of oil  
Improper amount of oil in crankcase  
Giant oil is recommended  
Adjust oil level to proper amount  
Preventative Maintenance Check-List & Recommended Spare Parts List  
Check  
Daily  
Weekly  
50hrs  
Every  
500 hrs  
Every  
1500 hrs  
Every  
3000 hrs  
Oil Level/Quality  
Oil Leaks  
Water Leaks  
Belts, Pulley  
Plumbing  
X
X
X
X
X
Recommended Spare Parts  
Oil Change (1 Gallon) p/n 1154  
Seal Spare Parts (1 kit/pump)  
(See page 7 for kit list)  
X
X
X
X
Oil Seal Kit (1 kit/pump)  
(See page 7 for kit lit)  
Valve Spare Parts (1 kit/pump)  
(See page 7 for kit list)  
X
11  
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Dimensions - P420/P420-0011/P420-0021/P422/P423 and P425 - Inches (mm)  
GIANT INDUSTRIES LIMITED WARRANTY  
Giant Industries, Inc. pumps and accessories are warranted by the manufacturer to be free from defects in  
workmanship and material as follows:  
1. For portable pressure washers and self-service car wash applications, the discharge manifolds  
will never fail, period. If they ever fail, we will replace them free of charge. Our other pump parts,  
used in portable pressure washers and in car wash applications, are warranted for five years from  
the date of shipment for all pumps used in NON-  
SALINE, clean water applications.  
2. One (1) year from the date of shipment for all other Giant industrial and consumer pumps.  
3. Six (6) months from the date of shipment for all rebuilt pumps.  
4. Ninety (90) days from the date of shipment for all Giant accessories.  
This warranty is limited to repair or replacement of pumps and accessories of which the manufacturer’s evaluation  
shows were defective at the time of shipment by the manufacturer. The following items are NOT covered or will  
void the warranty:  
1. Defects caused by negligence or fault of the buyer or third party.  
2. Normal wear and tear to standard wear parts.  
3. Use of repair parts other than those manufactured or authorized by Giant.  
4. Improper use of the product as a component part.  
5. Changes or modifications made by the customer or third party.  
6. The operation of pumps and or accessories exceeding the specifications set forth in the  
Operations Manuals provided by Giant Industries, Inc.  
Liability under this warranty is on all non-wear parts and limited to the replacement or repair of those products  
returned freight prepaid to Giant Industries which are deemed to be defective due to workmanship or failure of  
material. A Returned Goods Authorization (R.G.A.) number and completed warranty evaluation form is required  
prior to the return to Giant Industries of all products under warranty consideration. Call (419)-531-4600 or fax  
(419)-531-6836 to obtain an R.G.A. number.  
Repair or replacement of defective products as provided is the sole and exclusive remedy provided hereunder  
and the MANUFACTURER SHALL NOT BE LIABLE FOR FURTHER LOSS, DAMAGES, OR EXPENSES,  
INCLUDING INCIDENTAL AND CONSEQUENTIAL DAMAGES DIRECTLY OR INDIRECTLY ARISING FROM  
THE SALE OR USE OF THIS PRODUCT.  
THE LIMITED WARRANTY SET FORTH HEREIN IS IN LIEU OF ALL OTHER WARRANTIES OR REPRESEN-  
TATION, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY WARRANTIES OR MERCHANT-  
ABILITY OR FITNESS FOR A PARTICULAR PURPOSE AND ALL SUCH WARRANTIES ARE HEREBY  
DISCLAIMED AND EXCLUDED BY THE MANUFACTURER.  
GIANT INDUSTRIES, INC., 900 N. Westwood Ave., P.O. Box 3187, Toledo, Ohio 43607  
Copyright 2007 Giant Industries, Inc.  
11/07 P400-22_25mm.PMD  
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